SummaryThe wool has natural properties and special skills there are called as the Queen of fibers. Its properties are appreciated by industry and are still limiting the animal, because the same values by maintaining the integrity of all resort fleece fibers. The wool is from the secondary follicles, which begin to form in the uterus, where the process starts from 80-90 and concluded to 120-130 days of gestation and mature over a year of life. She is surrounded by the cuticle, its main structure is the cortex and when present, undesirable feature of medullation. Wool goes through a process of revaluation respondent by reformulation of habits, in which consider quality products, what are the impacts on the environment are less than possible, is indispensable for a sustainable production.